题解 | #平均播放进度大于60%的视频类别#

-- 各类视频 的平均播放进度
select
    tag,
    concat(round(avg(if(timestampdiff(second,start_time,end_time) >= duration,duration,timestampdiff(second,start_time,end_time))/duration*100),2),'%') as avg_play_progress
from tb_user_video_log u
join tb_video_info v using(video_id)
group by tag
-- 筛选进度大于60%
having replace(avg_play_progress,'%','') > 60
order by avg_play_progress desc;